DISCHARGE ELECTRODE
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United States of America Patent
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Issued Date -
Mar 15, 2018
app pub date -
Oct 30, 2017
filing date -
Jun 3, 2011
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Abstract
Heretofore, silicon nitride film formed by low pressure plasma CVD has been used for an antireflection film of a solar battery. But it is difficult to reduce the production cost of a solar battery, because, in a low pressure process, facility cost and process cost are expensive. As disclosed, a nitride film is formed by atmospheric pressure plasma CVD using dielectric barrier discharge generated by a plasma head where a plurality of plasma head unit parts is installed in parallel to generate plasma by applying electric field or magnetic field via a dielectric member. Stable glow discharge is formed even under atmospheric pressure by dielectric barrier discharge. And nitride film deposition under atmospheric pressure and low cost production of a solar battery is materialized by using dielectric barrier discharge and by reacting different plasmas generated from plasma supply openings laying side-by-side.
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